Which layover airport offers the lowest fares from Washington, D.C. to Perth?

Flights via Doha (DOH) offer the lowest average round-trip price of $2,197.

Which airport is the most popular layover for flights between Washington, D.C. and Perth?

Doha (DOH) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Washington, D.C. to Perth?

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 25h 45m.

Which layover airport has the shortest connection time from Washington, D.C. to Perth?

Doha (DOH) has the shortest average layover time for this route: 3h 04m.

What is the cheapest airline that flies from Washington, D.C. to Perth?

Qantas Airways, Cathay Pacific, and Air Canada are the most popular carriers operating from Washington, D.C. to Perth

How long does it take to fly to Perth?

Average flight duration from Washington, D.C. to Perth depends on which airport you fly into and out of. Flying from Baltimore to Perth is 31h 10m on average, while flying from Washington, D.C. to Perth is 31h 42m on average. Perth is the most popular airport in Perth.

When did momondo last update prices for flights from Washington, D.C. to Perth Airport?

Prices for flights from Washington, D.C. to Perth Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to Perth Airport?

The number of operators available for flights from Washington, D.C. to Perth Airport is 2 as of August 2026.

How old do you have to be to fly from Washington, D.C. to Perth Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Perth Airport.

What documentation or ID do you need to fly to Perth Airport?

The travel and health documents required for your trip to Perth Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Perth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$728 Cheap Flights from Washington, D.C. to Perth in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Perth

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:02 am - 4:20 amIAD Washington, D.C. Dulles Intl-PER Perth

57h 18m3 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl Singapore Changi

6:25 pm - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

65h 34m3 stops Singapore Changi Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$1,458Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

7:50 am - 6:50 amBWI Baltimore/Washington-PER Perth

35h 00m2 stops Seattle/Tacoma Intl Hong Kong Intl

12:10 am - 6:30 amPER Perth-BWI Baltimore/Washington

42h 20m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,477Multiple Airlines

Tue, Sep 15 - Sun, Sep 20

6:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

36h 50m2 stops Los Angeles Los Angeles Hong Kong Intl

12:10 am - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 49m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,483Multiple Airlines

Tue, Oct 13 - Mon, Oct 19

6:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

36h 50m2 stops Los Angeles Los Angeles Hong Kong Intl

12:10 am - 11:59 pmPER Perth-IAD Washington, D.C. Dulles Intl

35h 49m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,490Multiple Airlines

Tue, Oct 13 - Mon, Oct 19

10:30 am - 11:20 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 50m2 stops Doha Hamad Intl Sydney Kingsford Smith

10:45 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

30h 10m1 stop Doha Hamad Intl

$2,297Qatar Airways

Sun, Nov 15 - Sun, Nov 29

9:00 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-PER Perth

37h 30m2 stops Doha Hamad Intl Sydney Kingsford Smith

10:45 pm - 3:40 pmPER Perth-IAD Washington, D.C. Dulles Intl

28h 55m1 stop Doha Hamad Intl

$2,299Qatar Airways

Tue, Oct 13 - Tue, Oct 20

9:05 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-PER Perth

33h 40m1 stop Doha Hamad Intl

12:15 pm - 3:55 pmPER Perth-IAD Washington, D.C. Dulles Intl

40h 40m2 stops Sydney Kingsford Smith Doha Hamad Intl

$2,304Qatar Airways

Wed, Oct 28 - Mon, Nov 9

1:43 pm - 4:00 pmDCA Washington, D.C. Reagan-National-PER Perth

37h 17m2 stops Dallas/Fort Worth Brisbane

11:10 pm - 3:59 pmPER Perth-DCA Washington, D.C. Reagan-National

29h 49m2 stops Brisbane Dallas/Fort Worth

$2,839Qantas Airways

Tue, Dec 22 - Tue, Jan 5

4:39 pm - 2:10 pmIAD Washington, D.C. Dulles Intl-PER Perth

32h 31m2 stops Dallas/Fort Worth Brisbane

3:25 pm - 5:00 pmPER Perth-IAD Washington, D.C. Dulles Intl

38h 35m2 stops Brisbane Dallas/Fort Worth

$7,987Qantas Airways

Wed, Dec 16 - Mon, Jan 4

4:59 pm - 11:10 amDCA Washington, D.C. Reagan-National-PER Perth

29h 11m2 stops Los Angeles Los Angeles Brisbane

11:10 pm - 4:38 pmPER Perth-DCA Washington, D.C. Reagan-National

30h 28m2 stops Brisbane Dallas/Fort Worth

$8,101Qantas Airways

Sat, Feb 13 - Sun, Feb 28

Cheap last minute flights

Enter your travel dates to find the best prices.

6:10 am - 6:50 amDCA Washington, D.C. Reagan-National-PER Perth

36h 40m2 stops New York John F Kennedy Intl Hong Kong Intl

12:10 am - 5:59 pmPER Perth-DCA Washington, D.C. Reagan-National

53h 49m2 stops Hong Kong Intl San Francisco

$1,636Multiple Airlines

Thu, Sep 3 - Sun, Sep 6

9:55 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

32h 55m2 stops Toronto Pearson Intl Hong Kong Intl

9:55 am - 9:45 amPER Perth-IAD Washington, D.C. Dulles Intl

35h 50m3 stops Singapore Changi Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$1,827Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

3:55 pm - 10:40 pmBWI Baltimore/Washington-PER Perth

42h 45m2 stops Dallas/Fort Worth Hong Kong Intl

12:10 am - 11:41 pmPER Perth-BWI Baltimore/Washington

35h 31m2 stops Hong Kong Intl Dallas/Fort Worth

$1,880Cathay Pacific

Thu, Sep 3 - Sun, Sep 6

7:00 am - 6:50 amIAD Washington, D.C. Dulles Intl-PER Perth

35h 50m2 stops Seattle/Tacoma Intl Hong Kong Intl

12:10 am - 5:40 amPER Perth-IAD Washington, D.C. Dulles Intl

41h 30m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,881Multiple Airlines

Thu, Sep 3 - Sun, Sep 6

11:05 am - 12:30 pmIAD Washington, D.C. Dulles Intl-PER Perth

37h 25m2 stops Doha Hamad Intl Sydney Kingsford Smith

10:45 pm - 3:40 pmPER Perth-IAD Washington, D.C. Dulles Intl

28h 55m1 stop Doha Hamad Intl

$2,337Qatar Airways

Thu, Sep 3 - Mon, Sep 7

3:10 pm - 2:50 pmIAD Washington, D.C. Dulles Intl-PER Perth

35h 40m3 stops Abu Dhabi Zayed Intl New Delhi Indira Gandhi Intl Kuala Lumpur Intl

9:55 am - 9:45 amPER Perth-IAD Washington, D.C. Dulles Intl

35h 50m3 stops Singapore Changi Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

$2,344Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

10:55 am - 5:35 pmIAD Washington, D.C. Dulles Intl-PER Perth

42h 40m1 stop Dubai Intl

10:20 pm - 8:50 amPER Perth-IAD Washington, D.C. Dulles Intl

46h 30m1 stop Dubai Intl

$2,483Emirates

Thu, Sep 3 - Mon, Sep 7

6:52 pm - 2:40 pmBWI Baltimore/Washington-PER Perth

31h 48m2 stops San Francisco Melbourne

10:40 pm - 11:45 amPER Perth-BWI Baltimore/Washington

49h 05m3 stops Brisbane San Francisco Houston George Bush Intcntl

$2,789United Airlines

Thu, Sep 3 - Mon, Sep 7

1:04 pm - 2:40 pmDCA Washington, D.C. Reagan-National-PER Perth

37h 36m3 stops Chicago O'Hare Intl San Francisco Melbourne

10:40 pm - 4:43 pmPER Perth-DCA Washington, D.C. Reagan-National

30h 03m2 stops Brisbane San Francisco

$2,909United Airlines

Thu, Sep 3 - Mon, Sep 7

11:00 am - 3:45 pmDCA Washington, D.C. Reagan-National-PER Perth

40h 45m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith

4:25 pm - 7:59 pmPER Perth-DCA Washington, D.C. Reagan-National

39h 34m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl

$3,926Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

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Cathay Pacific flights from Washington, D.C. to Perth

Our best Cathay Pacific deals on Washington, D.C. to Perth flight tickets

Cathay Pacific

Sep 13

DCA11:31 amWashington, D.C. Reagan-National

47h 09m

2 stops

PER10:40 pmPerth

Sep 22

PER8:20 amPerth

51h 39m

2 stops

DCA11:59 pmWashington, D.C. Reagan-National

$1,552

Cathay Pacific

Oct 28

IAD6:00 amWashington, D.C. Dulles Intl

52h 55m

2 stops

PER10:55 pmPerth

Nov 9

PER8:30 amPerth

34h 08m

2 stops

IAD5:38 amWashington, D.C. Dulles Intl

$1,558

Cathay Pacific

Nov 12

IAD6:00 amWashington, D.C. Dulles Intl

51h 55m

2 stops

PER10:55 pmPerth

Dec 2

PER8:30 amPerth

34h 08m

2 stops

IAD5:38 amWashington, D.C. Dulles Intl

$1,575

United Airlines flights from Washington, D.C. to Perth

Our best United Airlines deals on Washington, D.C. to Perth flight tickets

United Airlines

Nov 17

BWI2:30 pmBaltimore/Washington

35h 15m

2 stops

PER2:45 pmPerth

Jan 12

PER11:45 pmPerth

29h 50m

2 stops

BWI4:35 pmBaltimore/Washington

$1,711

United Airlines

Nov 17

BWI2:30 pmBaltimore/Washington

35h 15m

2 stops

PER2:45 pmPerth

Jan 12

PER10:55 pmPerth

35h 36m

3 stops

BWI9:31 pmBaltimore/Washington

$1,713

United Airlines

Nov 17

BWI2:30 pmBaltimore/Washington

35h 15m

2 stops

PER2:45 pmPerth

Jan 12

PER10:55 pmPerth

35h 36m

3 stops

BWI9:31 pmBaltimore/Washington

$1,892

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/13

7:02 am-4:20 am

3 stops57h 18m

Perth

Tue 10/20

6:25 pm-11:59 pm

3 stops65h 34m

$1,458

BaltimorePerth

BWI Baltimore/Washington - PER Perth

BWIPER

Baltimore/Washington

Tue 9/15

7:50 am-6:50 am

2 stops35h 00m

Perth

Sun 9/20

12:10 am-6:30 am

2 stops42h 20m

$1,477

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/13

6:00 am-6:50 am

2 stops36h 50m

Perth

Mon 10/19

12:10 am-11:59 pm

2 stops35h 49m

$1,483

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/13

6:00 am-6:50 am

2 stops36h 50m

Perth

Mon 10/19

12:10 am-11:59 pm

2 stops35h 49m

$1,490

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Sun 11/15

10:30 am-11:20 am

2 stops35h 50m

Perth

Sun 11/29

10:45 pm-3:55 pm

1 stop30h 10m

$2,297

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Tue 10/13

9:00 pm-10:30 pm

2 stops37h 30m

Perth

Tue 10/20

10:45 pm-3:40 pm

1 stop28h 55m

$2,299

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Wed 10/28

9:05 pm-6:45 pm

1 stop33h 40m

Perth

Mon 11/9

12:15 pm-3:55 pm

2 stops40h 40m

$2,304

Washington, D.C.Perth

DCA Washington, D.C. Reagan-National - PER Perth

DCAPER

Washington, D.C. Reagan-National

Tue 12/22

1:43 pm-4:00 pm

2 stops37h 17m

Perth

Tue 1/5

11:10 pm-3:59 pm

2 stops29h 49m

$2,839

Washington, D.C.Perth

IAD Washington, D.C. Dulles Intl - PER Perth

IADPER

Washington, D.C. Dulles Intl

Wed 12/16

4:39 pm-2:10 pm

2 stops32h 31m

Perth

Mon 1/4

3:25 pm-5:00 pm

2 stops38h 35m

$7,987

Quickest round-trip

Washington, D.C.Perth

DCA Washington, D.C. Reagan-National - PER Perth

DCAPER

Washington, D.C. Reagan-National

Sat 2/13

4:59 pm-11:10 am

2 stops29h 11m

Perth

Sun 2/28

11:10 pm-4:38 pm

2 stops30h 28m

$8,101

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Perth?

In general, August is the cheapest month to fly from Washington, D.C. to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Perth during the month of August, then departing from Washington, D.C. during the month January is also very affordable. Most momondo users find prices during this month for around $1,743.

Can stopping save me money on Washington, D.C. to Perth flights?

You could potentially save up to 47% on your flight if you consider stops on a Washington, D.C. to Perth flight.

When to book flights from Washington, D.C. to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Perth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Perth (WAS to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Perth

Best Price Found	$728
Fastest flight time	29h 44m
Direct flights	None

The best one-way flight to Perth from Washington, D.C. in the past 72 hours is $728. The best round-trip flight deal from Washington, D.C. to Perth found on momondo in the last 72 hours is $1,458.

The fastest flight from Washington, D.C. to Perth takes 29h 44m

There are no direct flights from Washington, D.C. to Perth. There are no popular flight routes from Washington, D.C. to Perth.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Perth

How far is Washington, D.C. to Perth by plane?
The straight-line distance from Washington, D.C. to Perth is 11559.6 mi. 29h 44m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Perth Airport?
Prices for flights from Washington, D.C. to Perth Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Perth Airport?
The number of operators available for flights from Washington, D.C. to Perth Airport is 2 as of August 2026.
How old do you have to be to fly from Washington, D.C. to Perth Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Perth Airport.
What documentation or ID do you need to fly to Perth Airport?
The travel and health documents required for your trip to Perth Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Perth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Washington, D.C. to Perth?
Based on momondo bookings for flights between Washington, D.C. and Perth, the leading airline is Qantas Airways, making up 100% of the total bookings.

Best airlines flying from Washington, D.C. to Perth

Compare and see reviews for airlines that fly from Washington, D.C. to Perth with momondo

Airline	Rating	Free Cancellation	Price
Qantas Airways	PriceFrom $1,264	Free Cancellation	Rating 7.5 1,087 reviews		Search Qantas Airways flights
Qatar Airways	PriceFrom $2,062	Free Cancellation	Rating 7.4 3,723 reviews		Search Qatar Airways flights

Rottnest Island

Fremantle

Mandurah

Scarborough

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Perth?

It is quick and easy to find Washington, D.C. to Perth flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Perth that suits you.

Can I find flights from Washington, D.C. to Perth with flexible booking policies on momondo?

Flights from Washington, D.C. to Perth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Perth?

Once you have performed a search for Washington, D.C. to Perth flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Perth right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Perth, momondo offers a useful price alert feature which will track prices for flights to Perth from Washington, D.C. and alert you when they change.